its Egyptian ally, continued fighting the NLF. However FLOSY's fate was sealed when the NLF managed to persuade the Yemen's Federal army to join the fight against FLOSY. On November 7, 1967 FLOSY tried to attack a federal army base but the army defeated FLOSY with the NLF's help, inflicting heavy losses on FLOSY. After the defeat FLOSY´s fighting force disbanded although some cadres and leaders remained outside the country. Most of the opposing leaders reconciled by 1968, in the aftermath of a final royalist siege of San'a'. Post civil war Qahtan Muhammad al-Shaabi held the presidency until 22 June 1969, when a hard-line Marxist group from within his own NLF seized control. Salim Rubai Ali (Salmin) replaced al-Shaabi as country leader. After the civil war in 1970, Saudi Arabia recognized the Yemen Arab Republic and a ceasefire against remaining belligerents was put in place. The NLF changed the name of South Yemen on 1 December 1970 to the People's Democratic Republic of Yemen (PDRY). The NLF changed its name to the Yemeni Socialist Party (YSP) in 1978. All other political parties were amalgamated into the Yemeni Socialist Party (YSP), which became the only legal party. Bibliography Notes References -Total pages: 224 -Total pages: 83 -Total pages: 1370 -Total pages: 197 -Total pages: 195 -Total pages: 210 1963 establishments in the Federation of South Arabia 1978 disestablishments in Asia 20th-century disestablishments in Yemen Aden Emergency Arab nationalism in Yemen Arab nationalist militant groups Arab nationalist political parties Communist parties in Yemen Defunct political parties in Yemen Federation of South Arabia Independence movements National liberation movements Political parties disestablished in 1978 Political parties established in 1963 Popular fronts of communist states Rebel groups in Yemen Secessionist organizations in Asia Separatism in Yemen Wars involving the United Kingdom Yemeni Socialist Party